mirror of
https://github.com/X11Libre/xserver.git
synced 2026-09-29 21:46:40 +00:00
Initial revision
This commit is contained in:
Kaleb Keithley
parent
ded6147bfb
commit
9508a382f8
982 changed files with 479777 additions and 0 deletions
329
hw/xfree86/xaa/xaaDashLine.c
Normal file
329
hw/xfree86/xaa/xaaDashLine.c
Normal file
|
|
@ -0,0 +1,329 @@
|
|||
/* $XFree86: xc/programs/Xserver/hw/xfree86/xaa/xaaDashLine.c,v 1.5 2002/09/18 18:14:59 martin Exp $ */
|
||||
|
||||
#include "X.h"
|
||||
#include "misc.h"
|
||||
#include "xf86.h"
|
||||
#include "xf86_ansic.h"
|
||||
#include "xf86_OSproc.h"
|
||||
|
||||
#include "scrnintstr.h"
|
||||
#include "pixmapstr.h"
|
||||
#include "miline.h"
|
||||
#include "xf86str.h"
|
||||
#include "xaa.h"
|
||||
#include "xaalocal.h"
|
||||
|
||||
|
||||
void
|
||||
#ifdef POLYSEGMENT
|
||||
XAAPolySegmentDashed(
|
||||
DrawablePtr pDrawable,
|
||||
GCPtr pGC,
|
||||
int nseg,
|
||||
xSegment *pSeg
|
||||
#else
|
||||
XAAPolyLinesDashed(
|
||||
DrawablePtr pDrawable,
|
||||
GCPtr pGC,
|
||||
int mode, /* Origin or Previous */
|
||||
int npt, /* number of points */
|
||||
DDXPointPtr pptInit
|
||||
#endif
|
||||
){
|
||||
XAAInfoRecPtr infoRec = GET_XAAINFORECPTR_FROM_GC(pGC);
|
||||
XAAGCPtr pGCPriv = (XAAGCPtr) (pGC)->devPrivates[XAAGCIndex].ptr;
|
||||
BoxPtr pboxInit = REGION_RECTS(pGC->pCompositeClip);
|
||||
int nboxInit = REGION_NUM_RECTS(pGC->pCompositeClip);
|
||||
unsigned int bias = miGetZeroLineBias(pDrawable->pScreen);
|
||||
int xorg = pDrawable->x;
|
||||
int yorg = pDrawable->y;
|
||||
int nbox;
|
||||
BoxPtr pbox;
|
||||
#ifndef POLYSEGMENT
|
||||
DDXPointPtr ppt;
|
||||
#endif
|
||||
unsigned int oc1, oc2;
|
||||
int dmin, dmaj, e, octant;
|
||||
int x1, x2, y1, y2, tmp, len, offset;
|
||||
int PatternLength, PatternOffset;
|
||||
|
||||
if(!nboxInit)
|
||||
return;
|
||||
|
||||
if (infoRec->DashedLineFlags & LINE_LIMIT_COORDS) {
|
||||
int minValX = infoRec->DashedLineLimits.x1;
|
||||
int maxValX = infoRec->DashedLineLimits.x2;
|
||||
int minValY = infoRec->DashedLineLimits.y1;
|
||||
int maxValY = infoRec->DashedLineLimits.y2;
|
||||
#ifdef POLYSEGMENT
|
||||
int n = nseg;
|
||||
xSegment *s = pSeg;
|
||||
|
||||
while (n--)
|
||||
#else
|
||||
int n = npt;
|
||||
int xorgtmp = xorg;
|
||||
int yorgtmp = yorg;
|
||||
|
||||
ppt = pptInit;
|
||||
x2 = ppt->x + xorgtmp;
|
||||
y2 = ppt->y + yorgtmp;
|
||||
while (--n)
|
||||
#endif
|
||||
{
|
||||
#ifdef POLYSEGMENT
|
||||
x1 = s->x1 + xorg;
|
||||
y1 = s->y1 + yorg;
|
||||
x2 = s->x2 + xorg;
|
||||
y2 = s->y2 + yorg;
|
||||
s++;
|
||||
#else
|
||||
x1 = x2;
|
||||
y1 = y2;
|
||||
++ppt;
|
||||
if (mode == CoordModePrevious) {
|
||||
xorgtmp = x1;
|
||||
yorgtmp = y1;
|
||||
}
|
||||
x2 = ppt->x + xorgtmp;
|
||||
y2 = ppt->y + yorgtmp;
|
||||
#endif
|
||||
if (x1 > maxValX || x1 < minValX ||
|
||||
x2 > maxValX || x2 < minValX ||
|
||||
y1 > maxValY || y1 < minValY ||
|
||||
y2 > maxValY || y2 < minValY) {
|
||||
#ifdef POLYSEGMENT
|
||||
XAAFallbackOps.PolySegment(pDrawable, pGC, nseg, pSeg);
|
||||
#else
|
||||
XAAFallbackOps.Polylines(pDrawable, pGC, mode, npt, pptInit);
|
||||
#endif
|
||||
return;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
PatternLength = pGCPriv->DashLength;
|
||||
PatternOffset = pGC->dashOffset % PatternLength;
|
||||
|
||||
(*infoRec->SetupForDashedLine)(infoRec->pScrn, pGC->fgPixel,
|
||||
(pGC->lineStyle == LineDoubleDash) ? pGC->bgPixel : -1,
|
||||
pGC->alu, pGC->planemask, PatternLength, pGCPriv->DashPattern);
|
||||
|
||||
|
||||
#ifdef POLYSEGMENT
|
||||
while (nseg--)
|
||||
#else
|
||||
ppt = pptInit;
|
||||
x2 = ppt->x + xorg;
|
||||
y2 = ppt->y + yorg;
|
||||
while(--npt)
|
||||
#endif
|
||||
{
|
||||
nbox = nboxInit;
|
||||
pbox = pboxInit;
|
||||
|
||||
#ifdef POLYSEGMENT
|
||||
x1 = pSeg->x1 + xorg;
|
||||
y1 = pSeg->y1 + yorg;
|
||||
x2 = pSeg->x2 + xorg;
|
||||
y2 = pSeg->y2 + yorg;
|
||||
pSeg++;
|
||||
#else
|
||||
x1 = x2;
|
||||
y1 = y2;
|
||||
++ppt;
|
||||
if (mode == CoordModePrevious) {
|
||||
xorg = x1;
|
||||
yorg = y1;
|
||||
}
|
||||
x2 = ppt->x + xorg;
|
||||
y2 = ppt->y + yorg;
|
||||
#endif
|
||||
|
||||
|
||||
if (infoRec->SubsequentDashedBresenhamLine) {
|
||||
if((dmaj = x2 - x1) < 0) {
|
||||
dmaj = -dmaj;
|
||||
octant = XDECREASING;
|
||||
} else octant = 0;
|
||||
|
||||
if((dmin = y2 - y1) < 0) {
|
||||
dmin = -dmin;
|
||||
octant |= YDECREASING;
|
||||
}
|
||||
|
||||
if(dmin >= dmaj){
|
||||
tmp = dmin; dmin = dmaj; dmaj = tmp;
|
||||
octant |= YMAJOR;
|
||||
}
|
||||
|
||||
e = -dmaj - ((bias >> octant) & 1);
|
||||
len = dmaj;
|
||||
dmin <<= 1;
|
||||
dmaj <<= 1;
|
||||
} else { /* Muffle compiler */
|
||||
dmin = dmaj = e = octant = len = 0;
|
||||
}
|
||||
|
||||
while(nbox--) {
|
||||
oc1 = oc2 = 0;
|
||||
OUTCODES(oc1, x1, y1, pbox);
|
||||
OUTCODES(oc2, x2, y2, pbox);
|
||||
if (!(oc1 | oc2)) { /* uncliped */
|
||||
if(infoRec->SubsequentDashedTwoPointLine) {
|
||||
(*infoRec->SubsequentDashedTwoPointLine)(
|
||||
infoRec->pScrn, x1, y1, x2, y2,
|
||||
#ifdef POLYSEGMENT
|
||||
(pGC->capStyle != CapNotLast) ? 0 :
|
||||
#endif
|
||||
OMIT_LAST, PatternOffset);
|
||||
} else {
|
||||
(*infoRec->SubsequentDashedBresenhamLine)(
|
||||
infoRec->pScrn, x1, y1, dmaj, dmin, e,
|
||||
#ifdef POLYSEGMENT
|
||||
(pGC->capStyle != CapNotLast) ? (len+1) :
|
||||
#endif
|
||||
len, octant, PatternOffset);
|
||||
}
|
||||
break;
|
||||
} else if (oc1 & oc2) { /* completely clipped */
|
||||
pbox++;
|
||||
} else if (infoRec->ClippingFlags & HARDWARE_CLIP_DASHED_LINE) {
|
||||
(*infoRec->SetClippingRectangle)(infoRec->pScrn,
|
||||
pbox->x1, pbox->y1, pbox->x2 - 1, pbox->y2 - 1);
|
||||
|
||||
if(infoRec->SubsequentDashedBresenhamLine) {
|
||||
(*infoRec->SubsequentDashedBresenhamLine)(
|
||||
infoRec->pScrn, x1, y1, dmaj, dmin, e,
|
||||
#ifdef POLYSEGMENT
|
||||
(pGC->capStyle != CapNotLast) ? (len+1) :
|
||||
#endif
|
||||
len, octant, PatternOffset);
|
||||
} else {
|
||||
(*infoRec->SubsequentDashedTwoPointLine)(
|
||||
infoRec->pScrn, x1, y1, x2, y2,
|
||||
#ifdef POLYSEGMENT
|
||||
(pGC->capStyle != CapNotLast) ? 0 :
|
||||
#endif
|
||||
OMIT_LAST, PatternOffset
|
||||
);
|
||||
}
|
||||
(*infoRec->DisableClipping)(infoRec->pScrn);
|
||||
pbox++;
|
||||
} else {
|
||||
int new_x1 = x1, new_y1 = y1, new_x2 = x2, new_y2 = y2;
|
||||
int clip1 = 0, clip2 = 0;
|
||||
int err, adx, ady;
|
||||
|
||||
if(octant & YMAJOR) {
|
||||
ady = dmaj >> 1;
|
||||
adx = dmin >> 1;
|
||||
} else {
|
||||
ady = dmin >> 1;
|
||||
adx = dmaj >> 1;
|
||||
}
|
||||
|
||||
if (miZeroClipLine(pbox->x1, pbox->y1,
|
||||
pbox->x2 - 1, pbox->y2 - 1,
|
||||
&new_x1, &new_y1, &new_x2, &new_y2,
|
||||
adx, ady, &clip1, &clip2,
|
||||
octant, bias, oc1, oc2) == -1)
|
||||
{
|
||||
pbox++;
|
||||
continue;
|
||||
}
|
||||
|
||||
if (octant & YMAJOR)
|
||||
len = abs(new_y2 - new_y1);
|
||||
else
|
||||
len = abs(new_x2 - new_x1);
|
||||
#ifdef POLYSEGMENT
|
||||
if (clip2 != 0 || pGC->capStyle != CapNotLast)
|
||||
len++;
|
||||
#else
|
||||
len += (clip2 != 0);
|
||||
#endif
|
||||
if (len) {
|
||||
int abserr, clipdx, clipdy;
|
||||
/* unwind bresenham error term to first point */
|
||||
if (clip1) {
|
||||
clipdx = abs(new_x1 - x1);
|
||||
clipdy = abs(new_y1 - y1);
|
||||
|
||||
if (octant & YMAJOR)
|
||||
err = e + clipdy*dmin - clipdx*dmaj;
|
||||
else
|
||||
err = e + clipdx*dmin - clipdy*dmaj;
|
||||
} else
|
||||
err = e;
|
||||
|
||||
#define range infoRec->DashedBresenhamLineErrorTermBits
|
||||
abserr = abs(err);
|
||||
while((abserr & range) ||
|
||||
(dmaj & range) ||
|
||||
(dmin & range)) {
|
||||
dmin >>= 1;
|
||||
dmaj >>= 1;
|
||||
abserr >>= 1;
|
||||
err /= 2;
|
||||
}
|
||||
|
||||
if(octant & YMAJOR)
|
||||
offset = abs(new_y1 - y1);
|
||||
else
|
||||
offset = abs(new_x1 - x1);
|
||||
|
||||
offset += PatternOffset;
|
||||
offset %= PatternLength;
|
||||
|
||||
(*infoRec->SubsequentDashedBresenhamLine)(
|
||||
infoRec->pScrn, new_x1, new_y1,
|
||||
dmaj, dmin, err, len, octant, offset);
|
||||
}
|
||||
pbox++;
|
||||
}
|
||||
} /* while (nbox--) */
|
||||
#ifndef POLYSEGMENT
|
||||
len = abs(y2 - y1);
|
||||
tmp = abs(x2 - x1);
|
||||
PatternOffset += (len > tmp) ? len : tmp;
|
||||
PatternOffset %= PatternLength;
|
||||
#endif
|
||||
} /* while (nline--) */
|
||||
|
||||
#ifndef POLYSEGMENT
|
||||
/* paint the last point if the end style isn't CapNotLast.
|
||||
(Assume that a projecting, butt, or round cap that is one
|
||||
pixel wide is the same as the single pixel of the endpoint.)
|
||||
*/
|
||||
|
||||
if ((pGC->capStyle != CapNotLast) &&
|
||||
((ppt->x + xorg != pptInit->x + pDrawable->x) ||
|
||||
(ppt->y + yorg != pptInit->y + pDrawable->y) ||
|
||||
(ppt == pptInit + 1)))
|
||||
{
|
||||
nbox = nboxInit;
|
||||
pbox = pboxInit;
|
||||
while (nbox--) {
|
||||
if ((x2 >= pbox->x1) && (y2 >= pbox->y1) &&
|
||||
(x2 < pbox->x2) && (y2 < pbox->y2))
|
||||
{
|
||||
if(infoRec->SubsequentDashedTwoPointLine) {
|
||||
(*infoRec->SubsequentDashedTwoPointLine)(
|
||||
infoRec->pScrn, x2, y2, x2, y2, 0,
|
||||
PatternOffset);
|
||||
} else {
|
||||
(*infoRec->SubsequentDashedBresenhamLine)(
|
||||
infoRec->pScrn, x2, y2, 2, 0, -1,
|
||||
1, 0, PatternOffset);
|
||||
}
|
||||
break;
|
||||
} else
|
||||
pbox++;
|
||||
}
|
||||
}
|
||||
#endif
|
||||
|
||||
SET_SYNC_FLAG(infoRec);
|
||||
}
|
||||
|
||||
Loading…
Reference in a new issue